Malicious PDF — malware analysis report

Static analysis result for SHA-256 837904a662b0065e…

MALICIOUS

PDF

99.7 KB
MD5: 673e0d4ba56bae0d9c929c4299ce2764 SHA-1: f6a62396c778ac928d8bde9cf0e5c7c18183a1c9 SHA-256: 837904a662b0065ed795638b97be54c161957f2ba6a0982e24196e81ab93c102
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF file is identified as malicious due to the critical CVE-2010-0188 heuristic, indicating an exploit targeting Adobe Reader's LibTIFF component. The presence of XFA forms and embedded script payloads further supports its malicious nature. The exploit likely facilitates the execution of arbitrary code, potentially downloading a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • Embedded script payload in PDF stream low PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
8b27a0026afc8b665977739cd55630b9aeca91a7ccf58fe64e661d7df98415b1		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101297 bytes

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